Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

- Update ncurses to 5.7-20081102 (5.7 release) and build glue
- This also removes $FreeBSD$ from two now unmodifed source files
ncurses/tinfo/lib_raw.c and ncurses/tinfo/lib_baudrate.c

MFC after: 2 months (after 7.1 and 6.4 are released)

This commit was generated by cvs2svn to compensate for changes in r174993,
which included commits to RCS files with non-trunk default branches.

Import ncurses 5.6-20071222 snapshot onto the vender branch